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One Permutation Hashing for Efficient Search and Learning
Permutation Hashing Efficient Search Learning
2012/9/18
Minwise hashing is a standard procedure in the context of search, for efficiently estimating set similari-ties in massive binary data such as text. Recently, the method ofb-bit minwise hashing has bee...
Optimality of the Westfall-Young permutation procedure for multiple testing under dependence
Optimality Westfall-Young permutation procedure
2011/7/5
Test statistics are often strongly dependent in large-scale multiple testing applications. Most corrections for multiplicity are unduly conservative for correlated test statistics, resulting in a loss...
Extending The Range of Application of Permutation Tests:the Expected Permutation p-value Approach
Range Application Permutation Tests Expected Permutation p-value Approach
2010/3/11
The limitation of permutation tests is that they assume exchangeability.
It is shown that in generalized linear models one can construct permutation
tests from score statistics in particular cases. ...
Sparse permutation invariant covariance estimation
Covariance matrix High dimension low sample size large p small n Lasso Sparsity Cholesky decomposition
2009/9/16
The paper proposes a method for constructing a sparse estimator for the inverse covariance (concentration) matrix in high-dimensional settings. The estimator uses a penalized normal likelihood approac...
Testing for independence: Saddlepoint approximation to associated permutation distributions
Independence tests linear rank test permutation distribution saddlepoint approximation
2009/9/16
One of the most popular class of tests for independence between two random variables is the general class of rank statistics which are invariant under permutations. This class contains Spearman's coef...
On the Permutation Distribution of Independence Tests
Independence tests Linear rank test Permutation distribution Saddlepoint approximation
2010/3/18
One of the most popular class of tests for independence between two random
variables is the general class of rank statistics which are invariant under
permutations. This class contains Spearman’s co...